Face-brick sanding machine



April 28, I925.

l. N. DOUGHTY FACE BRICK SANDING MACHINE Filed March 2, 1925 CON 31655.-

Ivan It. honora ium-or nanvrntn, r.

or DAJWV'I TLE, i731 111N018, ASSEGNQE TO TESTERN BRICK GOIEPANY, N015, A QQBPUEATZUN Q ILLINOIS.

Application filed i i/l rch 1823. Serial 622,366.

To all whom it may concern:

Be it known that I, lvAN N. DOUGHTY, a citizen of the United States, residing at Danville, in the countyof Vermilion and v State of Illinois, have invented certain new filling up with sand the depressions in the texture surface. V

lt 1s highly desirable to have certain surfaces of brick sanded 1n order to prevent green brick from sticking when placed upon the dry-room cars, and also to prevent their sticking while being burned in the kilns. With certain forms of texture brick which have depressions formed in their surface, portions of this surface remain flat and undeformed. Unless sanded in some manner, these surfaces form high lights which are undesirable, and detract from the appearance of the brick in use.

In sanding. such brick by methods in common use, such as by throwing the sand upon the bricks by hand, or by brushing it upon the brick by various types of machines, the sand fills the depressions and but little of it remains upon the undisturbed fiat surface. The sand in the depressions does not fulfill the function of preventing sticking and is undesirable from the standpoint of appearance since it tends to fill up the depressions and destroy the desired tapestry effect. lhere is also considerable waste of sand if it is placed in the depressions.

It is an object of the present invention to provide a sanding machine adapted for use with texture brick, which-.1 achine serves to apply the sand only to the flat or undefmrined portions of the brick surface.

lt is also an object to provide an appas ratus adapted to press the sand into engage.

ment with the surfa e with sufficient pres sure to cause adh sion, but not to sink it into the surface.

lit is an additional object to provide an apparatus which is automatic in its action, which is simple andpositive in its operation, and which may be readily applied to existing installations at small cost.

chine at 21.

I have illustrated a preferred embodiment of my invention in the accompanying drawings, in which? Figure 1 is an elevation showing the sandmg apparatus associated with a machine adapted to impart a texture surface to the brick; and

Figure 2 is a plan view of Figure 1.

lhe machine which has been shown in part at the right of the two figures is that shown in the prior patent to Butterworth and Holmes, for brickmaking machine, Patent No. 1,191,925,.granted July 18, 1916.

While my apparatus is particularly adapted to work in conjunction with such machines, it is obviously capable of working upon brick material which has had a texture surface formed therein by means of other types of apparatus. The machine shown comprises the resilient fingers 5 which are carried into and out of engagement with ribbon of brick material 6 by means of power applied through bell-crank l. A similar construction (not shown) may operate upon the sides of the ribbon of brick material.

My sanding frame 8 which supports the rotating drum 9 by the pivot 10, and also supports the hopper or reservoir 11. lhe frame 8 is connected to the table supporting the brick material through slots 12 loosely fitting the bolts The vertical movement of the frame is limited by the length of the slots 12 and if there is no ribbon of brick passmg, or if the ribbon is abnormally thin, the frame is supported by the bolts 13. The frame is connected to the surface forming machine by the link 20 pivoted to the ma- Chis connection holds the frame in position and counteracts any tendency for it to be carried along with the movement of the ribbon of clay.

The drum 9 is provided with a yielding pad 8 upon its outer surface which pad preferably comifirises wool, felt, or similar material. The lower portion of the hopper or reservoir 11 is closed by a flexible member 14: supported by angles 15 from the plates 16. This flexible member 14: may be. formed of leather or of rubber belting or other similar material. lhe member 14 is provided with a flexible lip 1''! which engages the face of the pad 18 at a point slightly above the center of the drum 9, and upon the side apparatus comprises the of the drum which is moving upwardly in the normal operation of the apparatus.

The lower edge of the hopper 11 is cut away at 19 so that sand flows by gravity out upon the lip 17 and into engagement with the pad 18 upon the drum.

The reservoir 11 is kept supplied with sand and the operation of sanding is entirely automatic.

The pad 18 upon the drum bears upon the brick ribbon, and the movement of the ribbon serves to rotate the drum. The ribbon is moist and the pad, both due to its moisture content and to its fibrous nature, picks up a certain amount of sand as its surface moves upwardly past the lip 17 and through the contacting sand.

The amount of sand picked up is limited to the amount which will adhere to the pad. This sand clings to the pad and is pressed into engagement with the surface of the brick ribbon. The adhesion of the damp ribbon is sufficiently great to overcome that of the pad and consequently the undeformed portions or the flat surface of the brick ribbon is thus sanded. Due to the yielding nature of the pad, the sand is not pressed completely into the material. Also, the sand is not deposited in material quantities in the depressed or deformed portions of the surface since these do not engage the pad or, if only slightly deformed, engage it so lightly as not to cause the transfer of any material amount of the sand.

Vi 'hile I have shown one form of apparatus, it is obviously capable of modification to meet varying conditions and to adapt it for use for various types of brick forming apparatus. It is my intention to cover all such modifications as come within the scope of the appended claims.

I claim:

1. Apparatus for sanding brick comprising a pad. of fibrous material engaging the brick and a sand reservoir feeding sand to the pad.

2. Apparatus for sanding brick comprising a cylindrical drum carrying a pad of fibrous material upon its surface, said pad having rolling contact with the brick, and a sand reservoir feeding sand to the pad.

3. Apparatus for sanding brick comprising a pad of material having an adhesive attraction for sand, and engaging the moist brick whereby the sand is transferred to the brick by means of the adhesion of the brick.

1-. Apparatus for sanding brick comprising a cylindrical drum, the surface of which comprises a yielding pad, a sand reservoir feeding sand into contact with the pad, the pad carrying sand by adhesion, the pad engaging the brick material and depositing sand thereon by adhesion.

5. Apparatus for sanding brick comprising a rotatable cylindrical drum, the surface of which. comprises a yielding pad of fibrous material, a reservoir bringing sand into engagement with the drum surface at a point upon the upwardly moving side of the driun, and means passing the brick into engagement with the lower face of the drum, the movement of the brick serving to rotate the drum.

6. Apparatus for sanding brick comprising a rotatable cylindrical drum, the surface of which comprises a yielding pad of fi 'n'ous material, a reservoir having a flexible lip eir gaging the drum, the lip directing sand into ei'igagenieut with the drum suriiace at a point upon the upwardly moving side (it the drum, and means passing the brick into tiijl'a j ment with the lower face of the drum, the movement of the brick serving to rotate the drum.

Signed at Danville, Illinois, this 23 day of Feb, 1923.

IVAN N. DOUGHTY. 

